Mahjong image recognition scheme using Fourier transform technique
Wen‐Yuan Chen, Dong-Yi Kuo, Chiou-Kou Tung · 2012
In this paper, we analyze the Mahjong pattern and divide the pattern into several sub-blocks for extracting features by DFT. In normalization stage, scaling method is used to standardize patterns so to eliminate image zooming in or out problems.